.page-news {
  --ob-radius: 26px;
  --ob-gap: clamp(16px, 2.4vw, 28px);
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

.page-news .ob-section {
  padding: clamp(48px, 7vw, 96px) 0;
}

.page-news .ob-section--paper {
  background: var(--paper);
}

.page-news .ob-section--mist {
  background: var(--mist);
}

.page-news .ob-section--ink {
  background: var(--ink-black);
  color: var(--mist);
}

/* ---------- 首屏 ---------- */

.page-news .ob-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--mist);
  padding: calc(var(--header-h) + clamp(26px, 5vw, 54px)) 0 clamp(38px, 6vw, 76px);
}

.page-news .ob-hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
  opacity: 0.4;
  filter: grayscale(0.3);
}

.page-news .ob-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(220, 227, 225, 0.68) 0%, rgba(220, 227, 225, 0.88) 58%, var(--paper) 100%);
}

.page-news .ob-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 16px;
}

.page-news .ob-hero .breadcrumb {
  font-size: 13px;
}

.page-news .ob-hero .eyebrow {
  margin: 0;
  color: var(--cursor);
}

.page-news .ob-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--ink-black);
}

.page-news .ob-hero .lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.88;
  color: var(--ink);
}

.page-news .ob-trail {
  display: block;
  width: 100%;
  height: clamp(58px, 9vw, 118px);
  margin-top: 4px;
}

.page-news .ob-hero-meta {
  list-style: none;
  margin: 6px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 14px;
}

.page-news .ob-hero-meta li {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 10px;
}

.page-news .ob-hero-meta .num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink-black);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.page-news .ob-meta-label {
  font-size: 13px;
  color: var(--cursor);
}

/* ---------- 本周列表 ---------- */

.page-news .ob-stream {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-news .ob-axis-title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cursor);
}

.page-news .ob-axis-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-news .ob-axis-item {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 4px 0;
  font-size: 14px;
  color: var(--cursor);
  white-space: nowrap;
}

.page-news .ob-axis-item .num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.page-news .ob-axis-item.is-current {
  color: var(--ink-black);
}

.page-news .ob-stream-head {
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-news .ob-stream-head .section-title {
  margin: 0 0 8px;
}

.page-news .ob-stream-note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--cursor);
  max-width: 56ch;
}

.page-news .ob-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(18px, 2.8vw, 30px);
}

.page-news .filter-btn {
  border-radius: var(--radius-pill);
  font-size: 14px;
  line-height: 1.4;
}

.page-news .filter-btn[aria-pressed="true"] {
  position: relative;
}

.page-news .filter-btn[aria-pressed="true"]::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 3px;
  height: 2px;
  background: var(--orange);
}

.page-news .ob-cards {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .ob-cards::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 26px;
  bottom: 26px;
  width: 1px;
  background: var(--line);
  pointer-events: none;
}

.page-news .ob-card {
  position: relative;
  padding: clamp(16px, 2.6vw, 24px) 0 clamp(16px, 2.6vw, 24px) 30px;
  border-bottom: 1px solid var(--line);
}

.page-news .ob-card:first-child {
  border-top: 1px solid var(--line);
}

.page-news .ob-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(clamp(16px, 2.6vw, 24px) + 10px);
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  transition: background 0.25s var(--ease);
}

.page-news .ob-card:hover::before {
  background: var(--orange);
}

.page-news .ob-card-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-bottom: 10px;
}

.page-news .ob-code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cursor);
  font-variant-numeric: tabular-nums;
}

.page-news .ob-card-title {
  margin: 0 0 8px;
  font-size: clamp(17px, 2.3vw, 22px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ink-black);
}

.page-news .ob-card-text {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.page-news .ob-card-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  margin-top: 14px;
}

.page-news .ob-when {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cursor);
  font-variant-numeric: tabular-nums;
}

.page-news .ob-card-link {
  font-size: 13.5px;
  color: var(--ink-black);
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
  padding-bottom: 1px;
}

.page-news .ob-card-link:hover {
  color: var(--orange);
}

/* ---------- 战报归档 ---------- */

.page-news .ob-archive {
  display: grid;
  gap: clamp(22px, 3.4vw, 46px);
  margin-top: clamp(24px, 4vw, 44px);
}

.page-news .ob-archive-figure {
  margin: 0;
}

.page-news .ob-archive-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--ob-radius);
}

.page-news .ob-archive-figure .figure-caption {
  margin-top: 12px;
  font-family: var(--font-serif);
  font-size: 13px;
  line-height: 1.7;
  color: var(--cursor);
}

.page-news .ob-topics {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .ob-topic {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 16px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-news .ob-topic:last-child {
  border-bottom: 1px solid var(--line);
}

.page-news .ob-topic-idx {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  padding-top: 4px;
}

.page-news .ob-topic h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-black);
}

.page-news .ob-topic p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink);
}

/* ---------- 批次更新 ---------- */

.page-news .ob-batch {
  display: grid;
  gap: clamp(22px, 3.4vw, 52px);
}

.page-news .ob-batch-intro .section-title {
  margin: 0 0 12px;
}

.page-news .ob-batch-text {
  margin: 0 0 22px;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.88;
  color: var(--ink);
}

.page-news .ob-batch-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .ob-batch-item {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-news .ob-batch-item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-news .ob-batch-when {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-news .ob-batch-item h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-black);
}

.page-news .ob-batch-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink);
}

/* ---------- 周末收藏 ---------- */

.page-news .ob-section--ink .eyebrow {
  color: var(--cyan);
}

.page-news .ob-section--ink .section-title {
  color: var(--paper);
}

.page-news .ob-weekend {
  display: grid;
  gap: clamp(26px, 4vw, 54px);
}

.page-news .ob-weekend-text {
  margin: 14px 0 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mist-deep);
}

.page-news .ob-steps {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-news .ob-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding-top: 18px;
  border-top: 1px solid rgba(193, 203, 200, 0.28);
}

.page-news .ob-step .num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--cyan);
  padding-top: 4px;
  font-variant-numeric: tabular-nums;
}

.page-news .ob-step h3 {
  margin: 0 0 6px;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--paper);
}

.page-news .ob-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist-deep);
}

.page-news .ob-weekend-figure {
  margin: 0;
}

.page-news .ob-weekend-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border-radius: var(--ob-radius);
}

.page-news .ob-weekend-figure .figure-caption {
  margin-top: 12px;
  font-family: var(--font-serif);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist-deep);
}

/* ---------- 专题系列 ---------- */

.page-news .ob-features {
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
  margin-top: clamp(24px, 4vw, 42px);
}

.page-news .ob-feature {
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--ob-radius);
  overflow: hidden;
}

.page-news .ob-feature-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-news .ob-feature-body {
  display: grid;
  gap: 10px;
  justify-items: start;
  padding: clamp(18px, 2.6vw, 26px);
}

.page-news .ob-feature-body h3 {
  margin: 0;
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ink-black);
}

.page-news .ob-feature-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--ink);
}

.page-news .ob-feature-link {
  font-size: 13.5px;
  color: var(--ink-black);
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
  padding-bottom: 1px;
}

.page-news .ob-feature-link:hover {
  color: var(--orange);
}

/* ---------- 协作笔记 ---------- */

.page-news .ob-notes {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
  margin-top: clamp(22px, 3.4vw, 36px);
}

.page-news .ob-note {
  display: grid;
  gap: 10px;
  justify-items: start;
  padding: clamp(18px, 2.4vw, 24px);
  border-radius: var(--radius-md);
}

.page-news .ob-note h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink-black);
}

.page-news .ob-note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink);
}

.page-news .ob-notes-cta {
  margin: clamp(22px, 3vw, 32px) 0 0;
}

/* ---------- 收尾 ---------- */

.page-news .ob-closing {
  padding-top: 0;
}

.page-news .ob-closing-inner {
  border-top: 1px solid var(--line);
  padding-top: clamp(30px, 4vw, 48px);
}

.page-news .ob-closing .section-title {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
}

.page-news .ob-closing-links {
  display: grid;
  gap: 0;
}

.page-news .ob-closing-links a {
  display: block;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  font-size: 15.5px;
  color: var(--ink-black);
  text-decoration: none;
}

.page-news .ob-closing-links a:last-child {
  border-bottom: 1px solid var(--line);
}

.page-news .ob-closing-links a:hover {
  color: var(--orange);
}

@media (min-width: 640px) {
  .page-news .ob-hero-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px 20px;
  }

  .page-news .ob-batch-item {
    grid-template-columns: 116px minmax(0, 1fr);
    align-items: baseline;
    gap: 4px 20px;
  }

  .page-news .ob-batch-when {
    padding-top: 3px;
  }
}

@media (min-width: 760px) {
  .page-news .ob-notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .ob-archive,
  .page-news .ob-batch {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-news .ob-weekend {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
  }

  .page-news .ob-features {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
  }

  .page-news .ob-feature--wide {
    grid-column: 1;
    grid-row: span 2;
  }

  .page-news .ob-feature:not(.ob-feature--wide) {
    grid-column: 2;
  }

  .page-news .ob-closing-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 28px;
  }

  .page-news .ob-closing-links a,
  .page-news .ob-closing-links a:last-child {
    border-bottom: 1px solid var(--line);
  }
}

@media (min-width: 960px) {
  .page-news .ob-stream {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: clamp(28px, 3.4vw, 52px);
  }

  .page-news .ob-axis {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }

  .page-news .ob-axis-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    border-left: 1px solid var(--line);
  }

  .page-news .ob-axis-item {
    padding: 15px 0 15px 18px;
  }

  .page-news .ob-axis-item::before {
    content: "";
    position: absolute;
    left: -3.5px;
    top: 22px;
    width: 7px;
    height: 7px;
    background: var(--line);
  }

  .page-news .ob-axis-item.is-current::before {
    background: var(--cyan);
    box-shadow: 0 0 0 3px rgba(24, 240, 200, 0.22);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .ob-card::before {
    transition: none;
  }
}
<<<END>>>